Home / 19,220.80-26,526-10,724.44

Finding the Fourth Proportional to 19,220.80, 26,526 and 10,724.44

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Solution

The fourth proportional to 19,220.80, 26,526 and 10,724.44 is: 14,800.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,220.80 : 26,526 = 10,724.44 : x
  2. Step 2: Convert to fraction form
    19,220.80/26,526 = 10,724.44/x
  3. Step 3: Cross multiply
    19,220.80x = 26,526 × 10,724.44
  4. Step 4: Simplify right side
    19,220.80x = 284,476,495.44
  5. Step 5: Solve for x
    x = 284,476,495.44/19,220.80
  6. Step 6: Final answer
    x = 14,800.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.